Improvement in machines for threading and inserting wire



S. E. SHUTE, Jr. MACHINE FOR THREAD-ING AND msmmm WIRE.

Patented Dec. 7,1875.

NVPETERSv FHOTOUTHOGRAPHER. WASHINGTON, D C.

tion:

Urnn TATES SAMUEL E. SHUTE, JR, OF RICHMOND, INDIANA.

IMPROVEMENT IN MACHINES FOR THREADING AND INSERTING WIR E.

Specification forming part of Letters Patent No. 170,689, dated December7, 1875; application filed J une 3, 1875.

To all whom it may concern:

Be it known that I, SAMUEL E. SHUTE, J r., of Richmond, in the county ofWayne and State of Indiana, have invented certain Improvements inMachines for Inserting Screws into the Fellies of Wheels, and for otherpurposes, of which the following is a specifica- My invention is moreespecially designed to furnish wheelwrights with a machine adapted forcutting screw-threads upon long lengths of wire, and, at the same time,screwing the wire thus threaded in required lengths into the fellies ofwheels, upon the sides of the spokemortises, so as to accomplish at oneoperation what has heretofore required several.

My improvement consists in the use of ahollow sliding mandrel, throughwhich the wire or rod to be threaded and inserted passes, combined witha peculiarly-constructed chuck for periodically griping the wire to holdit so as to turn with the hollow mandrel, a die for threading the wire,and a spring for lifting the mandrel and chuck on the wire a distancerequired for the length of the next screw after the insertion of each.

In the annexed drawings, Figure 1 is an elevation of the front side ofmy improved machine, showing the chuck in section. Fig. 2 is a sectionalside elevation of the same. Fig. 3 is a sectional bottom view thereof.Fig. 4. is a perspective of one of the griping-jaws of the chuck.

The same letters of reference are used in all the figures in thedesignation of identical parts.

The hollow mandrel A is arranged to slide in suitable hearings in thevertically-disposed frame B, and is borne up by a spring, (J. Its lowerend terminates in a square head, having a transverse slot, within whichthe gripingjaws D D are pivoted, as best seen in Fig. 1. The long armsof these jaws protrude on either side of and above the head of themandrel, and are borne up, so as to throw their short griping-armsapart, by a spring, D against the sleeve E of the chuck, which encirclesand slides on the mandrel. The 0pposed faces of the short arms of thegripingjaws have semicircular or concave grooves d, adapted to the wireto be griped, and suitably milled to enable them to take a firm hold onthe wire. The sliding sleeve E of the chuck has an annular groove in itssurface, receiving the segments F and F of a ring, to which the yoke Gof a lever, G, is pivoted by pins f and f. The lever is fulcrumed at gto the frame, and has a handle of suitable length by which to operateit. The wire or rod H, passing through the mandrel between thegripingjaws, enters the screw-die I, which is of rectangular form, andrests in a socket in the bracket B of the frame. The die rests looselyin its socket, and is permitted to rise to the extent allowed by theoverhanging button K.

The downward movement of the lever is checked, so as to release the wirefrom the griping-jaws of the chuck, by a stop or gage, L, depending fromtheframe, and reaching 'with its horizontal end under the lever.

The operation of the machine will be as follows: A wire or rodhavingbeen. passed into the hollow mandrel so as to enter the die, andthe mandrel having been started to rotate, the lever G is borne down,and the wire clamped between the griping-jaws, causing it to rotate withthe mandrel; and the pressure on the lever being continued, the wirewill be gradually drawn into and through the screw-die, carrying themandrel and chuck with it, against the force of the spring 0, which willnow be compressed. On striking the stop L the lever is released, thegriping-jaws open, and the mandrel and the entire chuck are raised up onthe wire, which becomes at once stationary by the resilience of thespring O. A wheel is now placed, bearing with the side of the rimagainst the end of the screw-threaded rod or wire, and the wire againclamped between the gripingjaws. As itis beingthreaded itisdrawn throughthe die, as before, and screwed into the telly of the wheel at the sametime. The extent of each downward movement of the mandrel is soregulated that each time the exact length of screw desired will bescrewed into the felly. The inserted end of the screw will be cut offclose to the felly by suitable shears, leaving the end of the wirebeveled, so as to facilitate its entrance into the i wood. On passingthrough the wire the shears will slightly lift its upper length, whichis permitted by the loose die.

This machine is applicable to inserting ments FandF, and yoked l'everGG,substanscrews into thesoles of boots and shoes, and tially as specified,in combination with the other similar purposes, though primarilyinhollow mandrel and die I, as set forth. tended for wheelwrights, asabove stated. In testimony whereof I have signed my What I claim as myinvention, and desire name to this specification in the presence of tosecure by Letters Patent, istwo ::subsoribing witnesses.

1. The combination of the frame B, sliding hollow mandrel A,griping-jaws D D, die I, I S. E. SHUTE, JR. and spring 0, substantiallyas specified. 4 Witnesses:

2. The herein-described chuck, composed of D. P. HOLLOWAY, thegriping-jawsD D spring D sleeve E,seg- B. EDW. J. EILs.

